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Joined 3 years ago
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Cake day: June 12th, 2023

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  • In theory, quantum computing should be faster once hardware that’s faster is available, and only if the problem you’re trying to solve is in BQP, which isn’t that much of what computers are used for. Progress has been slow, but continuous, so the gap between simulating a quantum computer and actually using one has been shrinking. In October last year, Google’s Willow chip was verified to have achieved quantum advantage, i.e. done something that could be checked externally faster than a classical computer could have. It was only 13,000x faster, and in one specific task, which isn’t really enough to change the world, but ten or twenty years ago it was still thought to be fairly plausible that the physics might not be right and even if the practical problems were solved, they still wouldn’t work.

    Even if quantum computers get ludicrously fast, they’re still not going to be especially common, and they’ll be a piece of specialised equipment, more like an electron microscope than a home PC. Most people just don’t need to do any stuff that’s in BQP, so don’t care if they can do it faster. If you’re a company, university or government body that needs to do one of the very specific things that will be faster, though, they’ll be indispensable.

    Edit: Of particular relevance to the article, at the moment, SHA256, the hashing algorithm underpinning Bitcoin, is considered to be quantum-resistant. Someone might discover some new maths that means a quantum computer can break it faster than a classical computer, but at the moment, even though people have looked into it, there’s no indication that it’s possible, so it should never become easier to break Bitcoin etc. with a quantum computer than a classical one.


  • We had a mini CD adaptor in the house when I was a child (basically a plastic ring with clips in the cutout so it’d hold a mini CD and make it the same size as a regular CD), but everything that took CDs that we owned had an indentation for a mini CD already or had you put the disk on the spindle yourself. The two exceptions were later on, a Nintendo Wii, which would have worked as it played Gamecube disks and they were the same size, and a slot-loading car stereo, but we didn’t have any audio mini CDs, so I’ve no idea if that would have worked better or worse with the adapter.



  • I’ve never actually needed primer to paint PLA unless the paint I was using was terrible, and wouldn’t have stuck to the primer very well, either. Tamiya’s acrylics have been entirely issue-free for me, both with a brush, or thinned and airbrushed, and they’re not that expensive, but I’ve also had acceptable results with random fifteen-year-old tubes of really cheap acrylics that were sold more as a children’s toy than a serious paint (although a lot of these tubes had gone bad in that time) and with Humbrol and Revel acrylics and enamels (although their acrylics come in pots that don’t seal very well, so it’s not that uncommon for them to be already cured when you first open them - if you’re buying liquid acrylics for model painting, Tamiya is a better choice).








  • AnyOldName3@lemmy.worldto196@lemmy.blahaj.zoneDebian rule
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    7 days ago

    Given the number of times I’ve had to triage issues caused by mispackaged Debian builds, I’m baffled that Debian maintainers are under the impression that their users generally know they’re supposed to report problems to the package maintainers rather than upstream. Maybe people who’ve been using Debian since the naughties do, but for the average user, Debian seems to be crafted specifically to generate duplicate upstream issue reports.